Roller bag



FIG. 1 is a perspective front side view of a roller bag of the present invention;

FIG. 2 is a front side view of the roller bag;

FIG. 3 is a back side view of the roller bag;

FIG. 4 is a left side view of the roller bag;

FIG. 5 is a right side view of the roller bag;

FIG. 6 is a top side view of the roller bag; and,

FIG. 7 is a bottom side view of the roller bag.

The broken lines shown in the drawings illustrate portions of the roller bag and form no part of the claimed design. 

CLAIM The ornamental design for a roller bag, as shown and described. 